Below is a short list of special characters you can experiment with. For each character, hold down the modifier key (Option, Shift, etc.) and tap the character key noted. For instance, to type a bullet, hold down the Option key and tap the number 8 on the top of your keyboard (not the number 8 on the keypad). It's no different from typing an asterisk, where you hold down the Shift key and tap the 8.